Expansion shield



J. E. OGDEN.

EXPANSION SHIELD.

APPLICATION man lum: 19. 1920.

Panted Oct. 10, 1922.

Patented Oct. 10, 1922.

JOHN Enwlum oen'EN. or mimvrnn mariani,

'EXI'ANSION SHIELD.`

.innemen sied-:reife is,

-j all I'w'u'im it may concern: r

' Be it known that l', JOHN Einw/mo Oomen',

a, citizen of the United States of America, A und u. residentof Cornwall, Ora-nge County, `5 and State of New York, have invented cernew 'and useful Im rovements in Exp' """n Shieldsyowhie the followingiis alsieeiii'cetion, referencefbeing had toV tlie ao mp'ag'nying=l drawing. forminrr""h. Dart thereoi This j iyeii'tiqn relates to :expansion shields ofi-the typese to form" enohoriigesor threaded member-bf in' siichI mete'rials which calrimot ;'eiectiil'ely receive fand hold"'tlie threads of screws,'iblts or the like. ,Itsobs ject i'rto 'providefa simplefinexpensive and eicient device for forming '.suchjanchorages.' Another'object visto' pro?ide a,nlin 4 ternally threaded screwr receiving"- member which d may be inserted in en expansion slileld'and be made to expandthe same, which my l be 'held in such 1).` 'shield ready to receive a screw, or bolt'. "Another object v is to Erovide s. threaded member ada ted to receive e bolt and to be turned by the olt, and am'v expansible member arrangedY to be eiqanded i'nto holding-engegement with the wn ls of a. recessor hole-drilled ini ai,t wall or other object, by the rotation of the boltrec'e'ivingY member. Another obect is` to pro vide en anchorage ,in which't e'fbolt receivsorew threads are protected so that bolts may be removed and re-inserted et will. A still further ob'ectgi'sto provide structures which may be rawn or pressed lfrom sheet motel.

These and other objects of the invention will appear in 'the following specification in which I will describe the invention, the

v40 novel features of which will he set forth in appended oleims.

Figure lis si longitudinal section of :in expansion shield which is made according to' 'and embodies this invention, the same '45 being inserted in e hole drilled in a wall und a. bolt shown in eleretioii inserted therein. v l i Figure 24 is esimilar View of theseme parts with the shield or outer member expiiilded to form an anchorage.

Fi re 3 isbn elevation' in section of a modi ed form of one of the' parte shown in the'preceding figures with e setting tool shown therein in elevation.

Figure 4 is e longitudinal section of anrezo. sii no. seules.

orner-rom of expansionz shield which also embodiesthis invferitioil 1f Figui-e' 5 e' -ti-ensverse 1-feectronl or one devi of Figure 4, the section being' taken on theline Lvfofthelflettet Figure 6 isjjeflongitudinel elevation-'iet a. further modified form-ot construction.

jFigureJ is elon'gitiidiiirl' seotmil eleve tion of the s'tucturelhownix `6 the section being `teken on the' line-7&7 of1 the letter' ligure, `and tbewiewfbeingftslremet rightang1s'1to thpshyvii in 1F Y "6o Figure Bris fir-eeetiiinel"tie on ofr'l another structure which also embodies"fthis invention? Blei'eiriY 'nrstjwmigurreer mmm- ''l'design Yalillw Gylindrieixl'eerew -reoeivlhgmeniber ovitlilmlosed jild'll and :in outstendn agnglj'ebits OPT psiteflend': eer'itls-olosedffed its" wall is crimped to fforrn internlfid external screw threads 13j. Surrounding-the :thread Vreceivinv; member is len outer s ell closed n.to'ne en, is' shown 'at 15 memorized vitir Seite threads 16 near. this end intofwhieh'jthe meneer-1e 5t. 1The j rest'- of `its; .bcdyf is crimped or foldedr-n-wer'dly andoutwerdl on trnneversef-lined as -shown atl'f, en this `port' of 'the' outer shelljextends 'to the flange 12.

The device is inserted in a drill hole 20 in e structure 21, and s. bolt 22 inee'rtedi This fits the internal' threads 13 of. themember 10 which it enters freely. Ars soon as the end of the bolt reaches the bottom of this thread reoeivingme'mber' rits closed end 1l, it cannot go further into themember= bute,V continuationv of the rotation 'of the bolt will cause the member '1,0'I'to turn with it. Thisby reason f'its i 'ent with the threads 16 will drawthe otter onto the inner member and ceusfe' the closed end of the outer member to be' moved towards the heed ofthe bolt. The other endof'the puter member is -held against moving in this di- 100 recton by the flange 12. The result is that the'crmps or'folds 17 will be' folded towards onanother, and as they Cenn'otfmove 1nwardly because of their engagement with the outer surface of the inner member,the will 105 expandinto'a ti ht engagement wi the wall of4 the hole 0, es shown in Figure 2 sind thereby form a. firm anchorege.`

If desired, the member 10 may be first screizred'onto the bolt and the two screwed x10 into the outer Such r with inserted in shields of .therein eftebeef Eoo'l bj' which'livs desired dzgscrjbedv has of the wall of y materal'gghus Open ended exg ease the inner that the inter arts land many types, an moval of the bo inserted, ready to threaded device.

` operation of theA kind e some he perticlesfof hreaidsof but in tliis d of -the device is closed so na'l threadsmarevully protected. The. as show -n-ar'e. pressed or-drawn meta so are inexpensively produced. InFigure3` thegserewreceiv 1 j sopenhtbothends.- This gure'elso :Shows a setting' tool 23 which 'muy be used instead; 0f..1b01t.foinsert the sereni recei' ing member and expend the ,outermemhen Il; has e. shoulder-9A -which backs-nngfthe mange-12.

In the device ner screw-receivin -2 sh-l'ghatfshown in i -ase tils; outer t h,re

.anne-,3Q which' 'ngita bs 31 onl it'soute las tapery -33formed at one end intofvi'hd these-ribs HL The rest of its bodyismede with. folds or crimps l? which extenclkbo the flange 12.

' en a bolt is inserted in this devceend rotated after the enagement of its d l1, tio rotation of the closed `cn mem he. outer nut '30 and flange will expe-nd the fo manner previousl Figures 6 and ds or Crim y described, 7 show this invention n glied to another type or Iexpansion] shield. h I0 passes through a clearance hole in a. collar 40, the outside of which is tapered, :is shown at 41, through e two-purt shield 42-43 into a nutI 44 having -a tapered exterior 45. The inbermediatefportlons of both parts d are thickened in Some for example, by in which these ps1 its are formed b Self, as shown at 46. desired, and nul. 44 :un 'have believed lugs project into or Hough he parts the shield into suitable tapered xesc halls.

formed between Ll L The ooeration of thin device is as follows: The collar and mit me made tor approach by the rol eachhlzer mim: @f the inner memps 1'? in the :ick on itthe collar 447 which 42-43 of sp aces 48 ber and its engagement with the nut. The

mit, and the w" ,47 if the hehigl e. mrc or'" w c :saure @flle thi perte of the outer Fgure piece e 51. s .withfinbernal whichlmduce olfthe'shield.

` onthedevice flee fand. 'en

d screw there y. l

'h afee resent xpanson slne d50 ha is preferably fmpened, he-'bore 'cnw Theee'ribs. may beA made ofmetal-wlmi :enough-fori bolt mbo rem- :tapered an excess of mtalwhch sion fe ging mw r hevlng .away fro r by the moven. expansion. :Shiel screw recev' having nal-12s,.,arranged` to will be t endbho.: nserted, to form shieldleft medir ment of Said screw reoeivi ard the. in

ofthe collar and sides o'f the lugs e two parts of form a. secure further se mtermedlate ion of a, single ving a closed made1-o.,s9 ongitudnalend ribs 'A52 ner und threaded if chie swish movement ber p mthe ngmem lili4 eet metal lmv- 4.therein and expansion- Ashieldf compris' e xis of th fenced e-screw of said a 11o rovlded threeds, and portlons araxis of lmpressed thereber provided with engage the an external member provided with screw threads arranged to engage the external threads of the screw receiving member, and to be compressed between its threaded part and the external projection on said screw receiving member.

8. An expansion shield `comprising a closed end screw receiving memberhaving internal means for engaging screw threads, and having external screw threads near one of its ends and an external projection spaced from its external screw threads, an external member provided with screw threads arranged to engage the external threads of the screw receiving member, and to be compressed between its threaded part and the external projection on said screw receiving member, said external member being crease transversely.

9. An expansion shield comprising a closed end screw receiving member having internal means for engaging screw threads, and having external screw threads near one of its ends and an external projection spaced from its external screw threads, an external member provided withv screw threads arranged to engage the external threads of the screw receiving member, and to be compressed between its threaded part and the external projection on said screw receiving member, said external member being crease transversely and constructed with zig-zag folds.

10. An expansion shield comprising a closed end screw receiving member of sheet metal having screw threads impressed therein near its closed end and an externally projecting flange spaced trom said screw threads, an external member provided near one of its ends with screw threads arranged to engage the screw threads of the screw receiving member, and having a collapsible portion between its screw threads and said flange.

l1. An expansion shield comprising a closed end screw receiving member of sheet metal having screw threads impressed therein near its closed end and an externally projecting flange spaced from said screw threads, a closed end external member of sheet metal provided near its closed end with screw threads arranged to engage the screw threads of the screw receiving member and having laterally expansible portions between its screw threads and said flange.

12. An expansion shield comprising a closed end screw receivingr member of sheet metal havin screw threads impressed therein near its c osed end and an externally projecting flange spaced from said screw threads, a closed end external member of Aside from the main object of convenscrew threads arranged to engage the screw threads of the screw receiving member, said external member being creased transversely of the screw receiving member,

between its screwthreads and the .flange 'of the screw receiving member', and constructed with-zig-zagfolds between the creases.

13. An expansion shield comprising a screw reoeivmg member having internal means for engaging screw threads, and having `external screw threads near one of its ends and an 'external projection spaced from its external screw threads, an external member provided with screw threads arranged to engage the external threads of the screw receiving member, and to be compressed between its threaded part and the external projection on said screw receiving member.

14E. An expansion shield comprising a screw receiving` member having internal means for engaging screw threads, and having external screw 'threads near `one of its ends and an external projection spaced from its external screw threads, an external member provided with screw th'refads arranged to engage' rthe external threads ofthe screw receiving member, ,andto befconpressed between its threaded part and the external projection on said screwA receiving member, said 4external member being creased transversely and constructed with zig-zag folds.

"15."An expansionv shield lcompr1sin a screw receiving member of sheet metal avi'ng screw threads impressed therein and an externallyv projecting flange spaced from said screw threads, an external member provided near one of its ends with` screw threads arranged to engage the screw threads and having a collapsible portion betweenl its screw threads and said flange.l

16. An expansion shield comprising a screw receiving member of Sheet metal having screw threads impressed therein and an externally projecting flange spaced from said screw threads, an external member of sheet metal provided with screw threads arranged to engage the screw threads of the screw receiving member, said external member being creased transversely between its screw threads andl the lange of the screw receiving member, and" constructed with zigzag folds between the creases. l 17. An expansion' shild comprising a screw receiving :member rprovided wit means for engaging screw threads and means for limiting the rotation of a screw therein, and an external member having portions arranged to be forced away from the axis of the screw receiving member by ilzghe movement of said screw receiving mem- 18. An expansion shield comprising a screw receiving member of sheet metal having screw threads impressed therein, means for limiting the rotation of a screw in said member, and an external member having a portion provided with screw threads arranged to engage the threads of said screw receiving member and another portion arranged to be expanded thereby.

19. An expansion shield comprising a screw receiving member having internal means for engaging screw threads, external screw threads near one of its ends and an external pro'ection spaced romits external screw threa s, means for limiting the rotation of a screw in said member, an external member provided with screw threads arranged to engage the external threads of the screw receiving member, andhaving 1a Vportien to be compressed between its threaded part `and the external projection on `said screw receiving member.

20. An expansion shield comprising a rotatable screw receiving member provided with means lfor enga ing screw threads and means for limiting t e rotation of a screw thereinand an external member having a portion arranged. to be forced away from the axis of the screw receiving member lby the movement `of said screw receiving membel, said external member having a closed en i i 21. An expansion shield mprising a. screw receiving member of sheet metal having screw threads impressed therein, means for limiting the rotation of ascrew in Ysaid. member, and an external member having -a portion provided with screw threads varranged to engage the threads of said screw receiving member and another portion arranged to be expanded thereby,.said external member having a closed end.

22. An expansion shield comprising aY screw receiving member having internal means for engaging screw threads, external screw threads near one ofits ends and an external projection spaced from its external screw threads, means for limiting the rotation of a screw in said member, an external member provided with screw threads arranged to engage the external threads of the screw receiving member, and to be compressed between its threaded part and the external projection on said screw receiving member, said external member having a closed end.

23. .An expansion shield comprising a screw receiving member having internal means for engaging screw threads, external screw threads near one of its ends and an external projection spaced from its external threads; means for limiting the rotation o a screw therein, an external member provided with screw threads arranged to engage the external threads of the screw receiving member and to be compressed between its threaded part and the external projection on saldjscrew receiving member, said external member being creased transversely and construc'ted with zig-zag folds.

24. An expansion shield comprising a hollow rotatable inner member having externa screw threadsnear one 4oit its ends and an external projection spaced from its screw threads, and a closed end external member having internal screw threads near its closed end and a collapsible portion between its closed end and the external projectionfof the inner member.

I253.15in expansion shield screw receiving member., kvmeans Vfor. vrotating said screw receiving ,member within an external member and means for caiisin the rotation of said screwreoeivin mem r to force portions of said external member away from the axis of Isaid, .screw receiving member.

426. An expansion shieldscrew receiving member, means "for rotating said screw reoeiving member within an external member when a screw `has reached a predetermined position therein, and means for causing the rotation of said screw receiving member to force portions of said external member away ifrom the axis of said screw receiving member.

27. An expansion shield screw receiving member, means for rotating said screw receiving member within an external member in unison with an entering screw after the screw has entered said receiving member a predetermined distance, and means for causing the rotation of said screw receivin member to orce portions of said externa member away from the axis of said screw receiving member.

In witness whereof, l hereunto set my hand this 17th day of June, 1920.

JOHN EDWARD OGDEN. 

